Fig. 2 in Habitat characteristics and environmental parameters influencing fish assemblages of karstic pools in southern Mexico

Fig. 2. Biplot of the scores for the environmental variables (36 pools) using canonical variate analysis (CVA) based by Euclidean distance (Hill's scaling option). Environmental vector showed the direction along which each variable changes most: temperature (T), dissolved oxygen (DO), conductivity (Cond), pH, nitrates (NO 3), ammonium (NH 4), and potassium (K). Polygons: group locations (pools) with similar hydrological characteristics (Table 1). Group A: pools characterized by high ammonium concentration, B: pools with high electrical conductivity, and C: pools with high phosphorous concentrations.